Note 11 - Accrued Expenses (Details) - Accrued Expenses (USD $) In Thousands, unless otherwise specified	Jun. 29, 2014	Dec. 02, 2013	Jun. 30, 2013
Note 11 - Accrued Expenses (Details) - Accrued Expenses [Line Items]
Payroll and fringe benefits	$ 12,406		$ 11,676
Utilities	2,876		3,058
Property taxes	821		798
Contingent consideration	2,026	2,500
Interest	102		102
Retiree medical liability	62		106
Other	1,411		1,696
Total accrued expenses	18,589		18,485
Dillion Draw Winding [Member] | Other Current Liabilities [Member]
Note 11 - Accrued Expenses (Details) - Accrued Expenses [Line Items]
Contingent consideration	537
Other Current Liabilities [Member]
Note 11 - Accrued Expenses (Details) - Accrued Expenses [Line Items]
Severance	$ 374		$ 1,049